Mixing device for preparing sodium dichloroisocyanurate powder
By designing a chlorine gas introduction mechanism and a mixing device with strong shear stirring, the problem of insufficient chlorine reaction was solved, and the chlorine utilization rate and reaction efficiency in the preparation process of sodium dichloroisocyanurate powder were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG RUIQIKANGBAT BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-05
Smart Images
Figure CN224321433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sodium dichloroisocyanurate powder preparation technology, specifically a mixing device for preparing sodium dichloroisocyanurate powder. Background Technology
[0002] Sodium dichloroisocyanurate is a highly effective, broad-spectrum, novel systemic fungicide that can kill various bacteria, algae, fungi, and pathogens. The mechanism of action of sodium dichloroisocyanurate is as follows: when sprayed on the crop surface, it slowly releases hypochlorous acid (HCIO), which causes rapid death of pathogens by denaturing bacterial proteins, altering membrane permeability, interfering with enzyme systems, and affecting DNA synthesis.
[0003] Sodium isocyanurate is often prepared by chlorination, where cyanuric acid and caustic soda are mixed in a 1:2 molar ratio to form a disodium cyanurate solution. Chlorine gas is then introduced to carry out the chlorination reaction, producing a dichlorocyanuric acid slurry. This slurry is then centrifuged to obtain wet dichloroisocyanuric acid, which is added to the sodium dichloroisocyanurate mother liquor. Caustic soda is then added dropwise in a 1:1 molar ratio for neutralization. After cooling, crystallization, filtration, and drying, the sodium dichloroisocyanurate product is obtained. However, the chlorination reaction rate of chlorine gas is limited, and some chlorine gas is released from the solution as bubbles before reacting with the dichlorocyanuric acid slurry, resulting in chlorine waste. Therefore, we propose a mixing device for the preparation of sodium dichloroisocyanurate powder. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a mixing device for preparing sodium dichloroisocyanurate powder. Chlorine gas enters the tank through multiple gas pipes, and the chlorine gas is more dispersed in the tank. Under the action of strong shearing and stirring, the chlorine gas reaction is more complete, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for preparing sodium dichloroisocyanurate powder, comprising a tank, a chlorine gas inlet mechanism, and a cyanuric acid feeding mechanism;
[0006] Tank body: A tank cover is fixedly connected to its upper end, and the tank body and the tank cover together are equipped with a mixing mechanism that is symmetrically distributed on the left and right sides;
[0007] Chlorine gas inlet mechanism: It includes an inlet pipe, a transition pipe, a gas pipe, an outlet seat and a porous cover. The inlet pipe is provided in the middle of the tank cover. The lower end of the inlet pipe is fixedly connected to the transition pipe. The lower end of the transition pipe is fixedly connected to the outlet seat. Evenly distributed gas pipes are fixedly connected between the outlet seat and the inlet pipe. All gas pipes are located inside the transition pipe. The lower end of the outlet seat is fixedly connected to the porous cover.
[0008] Cyanuric acid feeding mechanism: It is located at the upper rear side of the integral tank body and tank cover. Chlorine gas enters the tank body through multiple gas pipes. The chlorine gas is more dispersed in the tank body, and the reaction of chlorine gas is more complete under the action of strong shearing and stirring.
[0009] Furthermore, it also includes a controller, which is located on the left side of the tank. The input terminal of the controller is electrically connected to an external power source to control electrical appliances.
[0010] Furthermore, the mixing mechanism includes a motor, a stirring blade, a rotating shaft, and a stirring blade. The upper surface of the tank cover is provided with motor mounts symmetrically distributed on the left and right. The upper end of each motor mount is fixedly connected to a motor. The lower end of the output shaft of each motor is fixedly connected to a rotating shaft via a coupling. The upper end of each rotating shaft is fixedly connected to a stirring blade, and the lower end of each rotating shaft is fixedly connected to a stirring blade. The stirring blades 1 and 2, located on the same rotating shaft, rotate in opposite directions. The input end of each motor is electrically connected to the output end of a controller, so that the solution is mixed more thoroughly.
[0011] Furthermore, the mixing mechanism also includes bushings and stabilizers. The inner wall of the tank is fixedly connected with stabilizers that are symmetrically distributed on the left and right sides. Bushings are fixedly connected to the middle of each stabilizer. All bushings are polytetrafluoroethylene bushings. The middle part of the rotating shaft is rotatably connected to the inside of the adjacent bushings, so that the rotation of the rotating shaft is more stable.
[0012] Furthermore, the cyanuric acid feeding mechanism includes a support base, a feeding pipe, a base, a bolt feeding shaft, a fixed base, a second motor, and a vacuum feeding cylinder. The upper end of the outer arc surface of the tank is provided with a support base, and the upper end of the support base is fixedly connected to the rear side of the upper surface of the tank cover. The lower end of the vacuum feeding cylinder is provided with a fixed base, which is located on the upper surface of the base. The lower end of the vacuum feeding cylinder is fixedly connected to a feeding pipe, and the rear end of the feeding pipe is fixedly connected to a second motor. The front end of the output shaft of the second motor is fixedly connected to a bolt feeding shaft, which is located inside the feeding pipe. The front end of the feeding pipe is connected to the rear side of the upper surface of the tank cover. The input end of the second motor is electrically connected to the output end of the controller to realize the automatic feeding of cyanuric acid.
[0013] Furthermore, the cyanuric acid feeding mechanism also includes weighing sensors. Weighing sensors are fixedly connected to the upper surface of the base, with four symmetrically distributed weighing sensors at the corners. The fixed base is fixedly connected between the detection ends of the weighing sensors. All weighing sensors are bidirectionally electrically connected to the controller to achieve accurate proportioning of cyanuric acid.
[0014] Furthermore, a chlorine recovery pipe is provided in the middle of the upper surface of the can lid to facilitate the recovery of any remaining small amount of chlorine.
[0015] Furthermore, the upper surface of the can lid is provided with evenly distributed mounting seats on the front side, which facilitates the installation of sensors and other devices.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The mixing device for preparing sodium dichloroisocyanurate powder has the following advantages:
[0017] 1. Chlorine gas enters through a gas tube and then exits through the round holes of the porous cover. The chlorine gas is more dispersed and has a larger reaction area in initial contact with the disodium cyanurate solution, which facilitates the full reaction of the chlorine gas.
[0018] 2. Stirring blade one and stirring blade two rotate in opposite directions. Stirring blade one pushes the caustic soda solution downwards, while stirring blade two pushes it upwards, creating convection currents and promoting the circulation of the solution within the tank. This enhances mixing efficiency. Since the two stirring blades of the same height rotate in opposite directions, the fluid between the blades of stirring blade one and stirring blade two will be bidirectionally sheared, resulting in a sharp increase in local turbulence, making the mixing more complex and allowing for faster and more complete chlorine fusion. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0021] Figure 3 This is a cross-sectional structural schematic diagram of the chlorine gas introduction mechanism of this utility model;
[0022] Figure 4 This is a cross-sectional view of the air outlet seat of this utility model.
[0023] In the diagram: 1. Tank body, 2. Tank cover, 3. Chlorine gas inlet mechanism, 31. Inlet pipe, 32. Transition pipe, 33. Gas pipe, 34. Outlet seat, 35. Perforated cover, 4. Mixing mechanism, 41. Motor I, 42. Agitator I, 43. Bushing, 44. Stabilizer, 45. Rotary shaft, 46. Agitator II, 5. Cyanuric acid feeding mechanism, 51. Support base, 52. Weighing sensor, 53. Feed pipe, 54. Base, 55. Bolted feed shaft, 56. Fixing seat, 57. Motor II, 58. Vacuum feeding cylinder, 6. Chlorine gas recovery pipe, 7. Mounting seat, 8. Controller. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-4 This embodiment provides a technical solution: a mixing device for preparing sodium dichloroisocyanurate powder, including a tank 1, a chlorine gas inlet mechanism 3 and a cyanuric acid feeding mechanism 5;
[0026] Tank body 1: A lid 2 is fixedly connected to its upper end. The tank body 1 and lid 2 together are equipped with a mixing mechanism 4 symmetrically distributed on both sides. The mixing mechanism 4 includes a motor 41, a stirring blade 42, a rotating shaft 45, and a stirring blade 46. The upper surface of the lid 2 is provided with motor seats symmetrically distributed on both sides. The upper end of each motor seat is fixedly connected to a motor 41. The lower end of the output shaft of each motor 41 is fixedly connected to a rotating shaft 45 via a coupling. The upper end of each rotating shaft 45 is fixedly connected to a stirring blade 42. A stirring blade 46 is fixedly connected to the lower end of each rotating shaft 45. The stirring blades 42 and 46, located on the same rotating shaft 45, rotate in opposite directions. The input end of the motor 41 is electrically connected to the output end of the controller 8. The mixing mechanism 4 also includes bushings 43 and stabilizers 44. The inner wall of the tank 1 is fixedly connected to stabilizers 44 that are symmetrically distributed on the left and right sides. Bushings 43 are fixedly connected to the middle of each stabilizer 44. All bushings 43 are polytetrafluoroethylene bushings. The middle part of the rotating shaft 45 is rotatably connected to the adjacent bushings. Inside 43, a chlorine recovery pipe 6 is provided in the middle of the upper surface of the tank cover 2, and a uniformly distributed mounting seat 7 is provided on the front side of the upper surface of the tank cover 2. The output shaft of motor 41 drives the lower rotating shaft 45 to rotate, and stirring blades 42 and 46 rotate. The two motors 41 rotate in opposite directions. Stirring blade 42 pushes the caustic soda solution downward, and stirring blade 46 pushes the caustic soda solution upward, so that the caustic soda solution forms convection, promoting the circulation of the caustic soda solution in the tank 1. Cyanuric acid is carried into the middle of the caustic soda solution, enhancing the mixing efficiency. At the same time, the two stirring blades 42 and 46 of the same height rotate in opposite directions. The fluid between the blades of stirring blade 42 and the fluid between the blades of stirring blade 46 will be bidirectionally sheared (similar to the "scissor effect"), resulting in a sharp increase in local turbulence. The stirring of the caustic soda solution and cyanuric acid is more complex and the fusion is faster. The rotating shaft 45 rotates inside the bushing 43. The stabilizer 44 makes the rotation of the rotating shaft 45 more stable and reduces the impact of the complex rotation of the solution on the rotating shaft 45.
[0027] Chlorine gas introduction mechanism 3: It includes an inlet pipe 31, a transition pipe 32, a gas pipe 33, an outlet seat 34, and a porous cover 35. The inlet pipe 31 is provided in the middle of the tank cover 2. The lower end of the inlet pipe 31 is fixedly connected to the transition pipe 32. The lower end of the transition pipe 32 is fixedly connected to the outlet seat 34. The outlet seat 34 and the inlet pipe 31 are fixedly connected to evenly distributed gas pipes 33. All gas pipes 33 are located inside the transition pipe 32. The lower end of the outlet seat 34 is fixedly connected to the porous cover 35. After the caustic soda solution reacts completely with cyanuric acid to generate disodium cyanurate, chlorine gas is introduced through the inlet pipe 31. The chlorine gas is separated and enters the outlet seat 34 through the gas pipe 33 and is discharged through the porous cover 35. The chlorine gas is dispersed, increasing the entry area when the chlorine gas enters, which facilitates the participation of chlorine gas in the reaction. The small amount of residual chlorine gas is recovered through the chlorine gas recovery pipe 6.
[0028] The cyanuric acid feeding mechanism 5 is located at the upper rear side of the integral structure consisting of tank body 1 and tank cover 2. The cyanuric acid feeding mechanism 5 includes a support base 51, a feeding pipe 53, a base 54, a bolted feeding shaft 55, a fixed base 56, a motor 57, and a vacuum feeding cylinder 58. The support base 51 is located at the upper end of the outer arc surface of tank body 1. The base 54 is fixedly connected between the upper end of the support base 51 and the rear side of the upper surface of the tank cover 2. The fixed base 56 is located at the lower end of the vacuum feeding cylinder 58 and is situated on the upper surface of the base 54. The lower end of the feed pipe 53 is fixedly connected to the feed pipe 53. The rear end of the feed pipe 53 is fixedly connected to the motor 57. The front end of the output shaft of the motor 57 is fixedly connected to the bolt feed shaft 55, which is located inside the feed pipe 53. The front end of the feed pipe 53 is connected to the rear side of the upper surface of the can cover 2. The input end of the motor 57 is electrically connected to the output end of the controller 8. The cyanuric acid feeding mechanism 5 also includes a weighing sensor 52. The upper surface of the base 54 is fixedly connected to four symmetrically distributed weighing sensors 52. The fixed base 56 is fixed. The weighing sensors 52 are connected to the detection ends of the weighing sensors 52, and all weighing sensors 52 are bidirectionally electrically connected to the controller 8. The chlorine recovery pipe 6 is connected to the chlorine recovery tank. The upper end of the vacuum feeding cylinder 58 is connected to the suction port of the vacuum feeder. The connection port on the outer arc surface of the vacuum feeding cylinder 58 is connected to the feeding pipe. When the vacuum feeder is started, a negative pressure is formed inside the vacuum feeding cylinder 58, and the cyanuric acid solid particles are sucked into the interior of the vacuum feeding cylinder 58. The output shafts of the base 54 and the second motor 57 drive the bolt feed shaft 55 to rotate, and the bolt feed shaft 55 feeds the cyanuric acid... The cyanuric acid is fed into the tank 1 through the feed pipe 53. The front end of the feed pipe 53 is fastened to the upper end of the cyanuric acid inlet of the tank cover 2. After the cyanuric acid enters the vacuum feeding cylinder 58, the feed pipe 53 moves slightly downward but does not contact the cyanuric acid inlet of the tank cover 2 to ensure the accuracy of weighing. The weighing sensor 52 detects the overall weight change of the feed pipe 53, the bolt feed shaft 55, the motor 2 57 and the vacuum feeding cylinder 58 and feeds it back to the controller 8. The controller 8 calculates the weight change of the cyanuric acid after tareing, thus achieving the accurate proportion of cyanuric acid.
[0029] It also includes a controller 8, which is located on the left side of the tank 1, and the input terminal of the controller 8 is electrically connected to an external power source.
[0030] The working principle of the mixing device for preparing sodium dichloroisocyanurate powder provided by this utility model is as follows: Caustic soda is injected through one of the mounting seats 7, and various sensors for detection can be installed on the other mounting seats 7. A chlorine recovery pipe 6 is connected to a chlorine recovery tank. The upper end of the vacuum feeding cylinder 58 is connected to the suction port of the vacuum feeder. The connecting port on the outer arc surface of the vacuum feeding cylinder 58 is connected to the feeding pipe. When the vacuum feeder is started, a negative pressure is formed inside the vacuum feeding cylinder 58, and the cyanuric acid solid particles are sucked into the interior of the vacuum feeding cylinder 58. The output shafts of the base 54 and the second motor 57 drive the bolt feed shaft 55. Rotating bolt feed shaft 55 feeds cyanuric acid into the tank 1 through feed pipe 53. The front end of feed pipe 53 is engaged with the upper end of the cyanuric acid inlet of tank cover 2. After the cyanuric acid enters the vacuum feeding cylinder 58, feed pipe 53 moves slightly downward but does not contact the cyanuric acid inlet of tank cover 2 to ensure weighing accuracy. Weighing sensor 52 detects the overall weight change of the feed pipe 53, bolt feed shaft 55, motor 2 57, and vacuum feeding cylinder 58 and feeds it back to controller 8. Controller 8 calculates the cyanuric acid weight change after tare, achieving accurate cyanuric acid proportioning. Motor 1 41... The output shaft drives the lower rotating shaft 45 to rotate, causing stirring blades 42 and 46 to rotate. The two motors 41 rotate in opposite directions. Stirring blade 42 pushes the caustic soda solution downwards, while stirring blade 46 pushes it upwards, creating convection currents and promoting circulation within tank 1. Cyanuric acid is carried into the middle of the caustic soda solution, enhancing mixing efficiency. Simultaneously, the two stirring blades 42 and 46, at the same height, rotate in opposite directions, causing bidirectional shearing of the fluid between the blades of stirring blade 42 and stirring blade 46 (similar to a "scissor effect"). This leads to a sharp increase in local turbulence, making the mixing of caustic soda solution and cyanuric acid more complex and faster. The rotating shaft 45 rotates inside the bushing 43, and the stabilizer 44 makes the rotation of the rotating shaft 45 more stable, reducing the impact of the complex rotation of the solution on the rotating shaft 45. After the caustic soda solution and cyanuric acid react completely to form disodium cyanurate, chlorine gas is introduced through the gas inlet pipe 31. The chlorine gas is separated and enters the gas outlet seat 34 through the gas pipe 33, and is discharged through the porous cover 35. The chlorine gas is dispersed, increasing the entry area when the chlorine gas enters, which facilitates the participation of chlorine gas in the reaction. The small amount of residual chlorine gas is recovered through the chlorine gas recovery pipe 6.
[0031] It is worth noting that the controller 8 disclosed in the above embodiments can be a PIC12F675-I / SN, the first motor 41 can be a BLD geared motor, the second motor 57 can be an ST4118D1804-A stepper motor, and the weighing sensor 52 can be a JLBU-1 weighing sensor. The controller 8 controls the operation of the first motor 41, the second motor 57 and the weighing sensor 52 using methods commonly used in the prior art.
[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A mixing device for preparing sodium dichloroisocyanurate powder, characterized in that: It includes a tank (1), a chlorine gas inlet mechanism (3), and a cyanuric acid feed mechanism (5); Tank body (1): A can lid (2) is fixedly connected to its upper end. The tank body (1) and the can lid (2) are equipped with a mixing mechanism (4) that is symmetrically distributed on the left and right sides. Chlorine gas inlet mechanism (3): It includes an inlet pipe (31), a transition pipe (32), a gas pipe (33), an outlet seat (34), and a porous cover (35). The inlet pipe (31) is provided in the middle of the tank cover (2). The lower end of the inlet pipe (31) is fixedly connected to the transition pipe (32). The lower end of the transition pipe (32) is fixedly connected to the outlet seat (34). The outlet seat (34) and the inlet pipe (31) are fixedly connected to evenly distributed gas pipes (33). The gas pipes (33) are all located inside the transition pipe (32). The lower end of the outlet seat (34) is fixedly connected to the porous cover (35). Cyanuric acid feeding mechanism (5): It is located on the upper rear side of the integral body (1) and the lid (2).
2. The mixing device for preparing sodium dichloroisocyanurate powder according to claim 1, characterized in that: It also includes a controller (8), which is located on the left side of the tank (1), and the input terminal of the controller (8) is electrically connected to an external power source.
3. The mixing device for preparing sodium dichloroisocyanurate powder according to claim 2, characterized in that: The mixing mechanism (4) includes a motor (41), a stirring blade (42), a rotating shaft (45), and a stirring blade (46). The upper surface of the tank cover (2) is provided with motor seats symmetrically distributed on the left and right. The upper end of each motor seat is fixedly connected to a motor (41). The lower end of the output shaft of the motor (41) is fixedly connected to a rotating shaft (45) through a coupling. The upper end of the rotating shaft (45) is fixedly connected to a stirring blade (42), and the lower end of the rotating shaft (45) is fixedly connected to a stirring blade (46). The stirring blades (42) and (46) located on the same rotating shaft (45) rotate in opposite directions. The input end of the motor (41) is electrically connected to the output end of the controller (8).
4. The mixing device for preparing sodium dichloroisocyanurate powder according to claim 3, characterized in that: The mixing mechanism (4) also includes bushings (43) and stabilizers (44). The inner wall of the tank (1) is fixedly connected with stabilizers (44) that are symmetrically distributed on the left and right. Bushings (43) are fixedly connected to the middle of each stabilizer (44). The bushings (43) are all polytetrafluoroethylene bushings. The middle part of the rotating shaft (45) is rotatably connected to the inside of the adjacent bushings (43).
5. The mixing device for preparing sodium dichloroisocyanurate powder according to claim 2, characterized in that: The cyanuric acid feeding mechanism (5) includes a support base (51), a feeding pipe (53), a base (54), a bolt feeding shaft (55), a fixed seat (56), a second motor (57), and a vacuum feeding cylinder (58). The upper end of the outer arc surface of the tank body (1) is provided with a support base (51). The upper end of the support base (51) and the rear side of the upper surface of the tank cover (2) are fixedly connected to the base (54). The lower end of the vacuum feeding cylinder (58) is provided with a fixed seat (56). The fixed seat (56) is set with... On the upper surface of the base (54), the lower end of the vacuum feeding cylinder (58) is fixedly connected to the feeding pipe (53), the rear end of the feeding pipe (53) is fixedly connected to the motor (57), the front end of the output shaft of the motor (57) is fixedly connected to the bolt feeding shaft (55), the bolt feeding shaft (55) is located inside the feeding pipe (53), the front end of the feeding pipe (53) is connected to the rear side of the upper surface of the can cover (2), and the input end of the motor (57) is electrically connected to the output end of the controller (8).
6. The mixing device for preparing sodium dichloroisocyanurate powder according to claim 5, characterized in that: The cyanuric acid feeding mechanism (5) also includes a weighing sensor (52). The upper surface of the base (54) is fixedly connected with four symmetrically distributed weighing sensors (52). The fixed seat (56) is fixedly connected between the detection ends of the weighing sensors (52). The weighing sensors (52) are all bidirectionally electrically connected to the controller (8).
7. The mixing device for preparing sodium dichloroisocyanurate powder according to claim 1, characterized in that: The upper surface of the can lid (2) is provided with a chlorine recovery pipe (6).
8. The mixing device for preparing sodium dichloroisocyanurate powder according to claim 1, characterized in that: The upper surface of the can lid (2) is provided with uniformly distributed mounting seats (7).